21695367040

素因数分解:

$2^7\times 5^1\times {\mathrm{1741}}^1\times {\mathrm{19471}}^1$

素因数の和:21231

約数の個数: 64

約数和(自身を含む): 51897942720

約数和(自身を除く): 30202575680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1741, 3482, 6964, 8705, 13928, 17410, 19471, 27856, 34820, 38942, 55712, 69640, 77884, 97355, 111424, 139280, 155768, 194710, 222848, 278560, 311536, 389420, 557120, 623072, 778840, 1114240, 1246144, 1557680, 2492288, 3115360, 6230720, 12461440, 33899011, 67798022, 135596044, 169495055, 271192088, 338990110, 542384176, 677980220, 1084768352, 1355960440, 2169536704, 2711920880, 4339073408, 5423841760, 10847683520, 21695367040]

約数ペア:

[(1, 21695367040), (2, 10847683520), (4, 5423841760), (5, 4339073408), (8, 2711920880), (10, 2169536704), (16, 1355960440), (20, 1084768352), (32, 677980220), (40, 542384176), (64, 338990110), (80, 271192088), (128, 169495055), (160, 135596044), (320, 67798022), (640, 33899011), (1741, 12461440), (3482, 6230720), (6964, 3115360), (8705, 2492288), (13928, 1557680), (17410, 1246144), (19471, 1114240), (27856, 778840), (34820, 623072), (38942, 557120), (55712, 389420), (69640, 311536), (77884, 278560), (97355, 222848), (111424, 194710), (139280, 155768)]